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TI unveils POTS voice over broadband solution

Posted: 03 Jun 2002 ?? ?Print Version ?Bookmark and Share

Keywords:tp2450? isl5587? voice codec? subscriber line interface circuit? dual channel slic?

Texas Instruments Inc. has unveiled a family of programmable voice codecs that enable manufacturers and service providers to quickly deploy enhanced voice capabilities on existing broadband platforms, as well as provide a migration path to next-generation voice services.

The TP2450, the first member of the family, directly interfaces with Intersil Corp.'s ISL5587 dual channel subscriber line interface circuit (SLIC), to form a complete voice solution that can be used in network interface devices, SME gateways, or CPE devices such as home routers and gateways, DSL and cable modems, and multimedia terminal adapters.

Together, the codec and SLIC require a single 3.3V power supply and is claimed by the company to offer the lowest power dissipation in the industry. This enables line-powered applications and extends the charge life of backup batteries.

The programmable solution also helps manufacturers decrease system costs by integrating passive components and facilitating the use of a single design for different countries.

Support for the TP2450 and ISL5587 combined solution includes analog reference designs, joint evaluation modules, and Telogy Software products.

Prices for the codec ranges from $7 to $8, and $5 to $6 for the SLIC, both depending on volume.

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